6mm machine head tuner shaft. It achieves nothing. Guitars Electric co uk. Regards, Les & Pat at Guitars Electric. For example;.
6 REDUCER FERRULES BUSHINGS for Vintage Style Machine Heads Guitar 8mm to 10mm.
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New Bullet String Ferrules Bushings Tele Strat Hardtail Through Body Guitar 6mm
6x Guitar Through Body String Ferrules,Bushings Guitar Accessories
1950's Gibson Les Paul Jr J45 J50 LG1 Kluson Guitar Tuner Ferrules / Bushings
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